If Vector A is (6, 4) and Vector B is (-2, -1), what is A – B? A. (8,5)
B. (4,5)
C. (4,3)
D. (8,3)

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.